Predefined type “System.Void” is not defined or imported – Visual Studio builds fine but screws up everything in text editors

Hitting the phenomen Recently I went to a different machine. My company allowed for newer faster machines. Perfect to set up everything again and clean up. I needed to open an older project that I had been working on two months before. This is an asp.net core 1.1.2 solution that works …




GetDependsOnNetStandard task failed unexpectedly – Nuget Package Manager Visual Studio 2017 Magic.

Yesterday I got a message from a collegue of mine that building a solution with Visual Studio failed ungracefully. He directly got the sources from git freshly, there was no interaction by him. I checked my last commits and couldn’t see anything that was wrong. So I just got all the sources …




Microsoft Graph & Excel API: Waterfall Charts with d3js as Office 365 Addin – is that already stable?

Did you hear about Waterfall? No, I don’t mean the oldschool development practice of the NASA to ensure that a rocket-powered aircraft will fly in space forever. I mean Waterfall charts: These charts do add some value for business users as they are different. They do not just show data, …